Is 50385K83 the only one?

[Cubey]

My 87 6.9 NA has been giving me hard cold starting recently. Nothing horrible but 2-3 tries plus giving it throttle. Warm has been fine. I was blaming the glow plug harness but today it wouldn’t start beyond stuttering with the starter going. It’s not cold enough to justify it in terms of glow plugs.

Upon fuel line inspection, I found dripping at the injection pump, at the steel line from fuel filter head. Aka the olive.

Doing my research on here, part 50385K83 comes up but that seems to be the only part number I ever see. Is that really it? I guess you buy at least two considering how much shipping they probably charge.

For now, loosening the connection, then tightening it down a bit more than it was before, has stopped the leak. I’m recharging my batteries at the moment from excessive cranking so I haven’t gotten it started yet.

I do have fuel at the filter head, it squirts from the valve with the electric pump on. So it’s apparently air intrusion into the injection pump.

Edit: yep after just enough charging and 3 rounds of cranking plus a little throttle it fired up. So yeah I will be replacing it. Just wondering if that’s the one and only source for the seal.

 

[03wr250f]

message typ4 on here, or if you are on facebook you could message him. his name is michelle n Russell mathis He sells those as well as pretty much anything else you could need

 

[crash-harris]

The olives Russ has are spot on, but I think he also sells hardline delete kits from the filter head to IP. I traded a pedal assembly to Mike R Green for one and verified that it's either the old return to tank line letting my system bleed off or just the old IP causing my longer first-start-of-the-day cranking times...or both. I don't have steel lines, truck came like that, and I've now deleted all the olives.

 

[Cubey]

Will do. Thanks.

 

[IDIBRONCO]

If you go with the olive replacement route, you should order two olives anyway. There's one at each end of that hard line.

 

[03wr250f]

you need 4 or 5 for the whole system but they may be different sized. two at filter housing. Heck i believe there is one down at the fuel pump too. back of the ip, and return line 3-way at the back of the engine.

 

[Cubey]

you need 4 or 5 for the whole system but they may be different sized. two at filter housing. Heck i believe there is one down at the fuel pump too. back of the ip, and return line 3-way at the back of the engine.

My lift pump isn’t used. It has an electric pump. It has a rubber hose from the steel line that would supply the lift pump, up to the filter head. So I guess the only steel line really left is the filter to IP, and of course the IP to injector lines.

 

[IDIBRONCO]

There's not one at the lift pump. I only mentioned the one from the filter to the injector having two since you were talking about that line not any others.

 

[icanfixall]

The olives needed depends on wether you have the steel return line running down the drivers side og the engine or not. So lets say you have that line. you will need 3 olives that are the 5/16 tubing size. If you have the original line from the lift pump to the filter head you need JUST ONE olive and its the 3/8 tubing size. Its also found at the filter head inlet. So knowing all this at the very least you will need just two olives for the discharge from the filter to the back of the injection pump and this are 5/16 tubing olives.
Just a note on the return line manifold located at the number 8 injector on the back of the head on the drivers side. That is one hidden hell of a job to fix. Very few owners know of this hidden olive and boy are they tuff to remove from the brass fitting.

 

[Cubey]

I’ll try to remember to snap a few pictures tomorrow.

 

[crash-harris]

As far as the brass return manifold and it's olive, I copied what Brian did. The it away and replaced it with a brass tee fitting and 3 hose barbs. Just have to route the IP return line to am injector return cap. #2 is easy to get to.

 

[vegas39]

I make my own olives. If you wanna fix it right now, just cut a piece of vacuum line and make your own.
Before everyone nags me about diesel rates hose, the first truck I made them for, never had a problem in four years.
I ordered one of those fancy flexible fuel lines from conestoga diesel but unfortunately it never showed up with the rest of my order. At least I didn't get charged for it.
I'd prefer something like that over the hard line anyday.

 

[Cubey]

Yeah barbed fittings and hose is probably good enough. Not sure why they went hard lines as if it was high pressure.

Not sure how to go about it unless I buy a $30 kit I spotted on some IDI store.

 

[vegas39]

Yeah barbed fittings and hose is probably good enough. Not sure why they went hard lines as if it was high pressure.

Not sure how to go about it unless I buy a $30 kit I spotted on some IDI store.

I should probably re phrase my post. The vacuum line was for making olives, not for a supply line.
I'm still using the hard line but I have home made olives in it cut from vacuum hose.

 

[icanfixall]

Any injection pump repair shop sells the olives and so does mcmaster carr. Sorry I do not have the part number.